Observation information
- date-obs: 2026-09-03
- time-obs: 06:46:04.172800000
- date-end: 2026-09-03
- time-end: 08:54:19.156700000
- obs_id: T05_264T01_9000006602
- exposure: 815.338917911
- sourceid: 4U 1907+09
- observer: rsharmaphys
- ra_pnt: 287.4085
- dec_pnt: 9.829809
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T05_264T01_9000006602_59158cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59158cztM0_level2_quad_clean.evt
|
| Size (bytes) | 833,270,400 | 92,540,160 |
| Size | 794.7 MB
| 88.3 MB
|
| Events in quadrant A | 3,498,107 | 723,230 |
| Events in quadrant B | 3,621,081 | 789,131 |
| Events in quadrant C | 5,293,016 | 686,205 |
| Events in quadrant D | 17,833,913 | 67,886 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16002 | 0 |
| B | 0 | 16205 | 0 |
| C | 0 | 21119 | 0 |
| D | 0 | 58229 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7695 | 83 | 1.078622% |
| B | 7696 | 176 | 2.286902% |
| C | 7696 | 408 | 5.301455% |
| D | 7696 | 7055 | 91.670998% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7695 | 7695 | 14 | 14 | 0.18% | 0.18% |  |
| B | 7696 | 7696 | 14 | 14 | 0.18% | 0.18% |  |
| C | 7696 | 7696 | 336 | 336 | 4.37% | 4.37% |  |
| D | 7696 | 7696 | 5848 | 5848 | 75.99% | 75.99% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 10 | 251 | 98819 | 461.9 | 867 | 845 | 212.1 |
| A | 4 | 3 | 16849 | 75.45 | 867 | 845 | 212.1 |
| A | 3 | 14 | 14717 | 65.4 | 867 | 845 | 212.1 |
| B | 5 | 185 | 53574 | 281.47 | 863 | 829 | 187.4 |
| B | 4 | 236 | 52866 | 277.69 | 863 | 829 | 187.4 |
| B | 7 | 252 | 31918 | 165.91 | 863 | 829 | 187.4 |
| C | 5 | 250 | 1253744 | 5493.56 | 832 | 824 | 228.1 |
| C | 5 | 233 | 421883 | 1846.18 | 832 | 824 | 228.1 |
| C | 12 | 252 | 151148 | 659.11 | 832 | 824 | 228.1 |
| D | 12 | 1 | 13222980 | 176098.7 | 258 | 246 | 75.1 |
| D | 12 | 110 | 3081153 | 41031.13 | 258 | 246 | 75.1 |
| D | 8 | 240 | 249580 | 3320.6 | 258 | 246 | 75.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |
TCT plots
| Parameter |
TCT0 |
TCT_healed |
| Tct |  |  |